title: Gas chromatography of serum valproic acid, with methyl-m-toluate as internal standard.
mesh_terms: D001565:Benzoates; D002849:Chromatography, Gas / Q000379:methods*; D006801:Humans; D012015:Reference Standards; D014635:Valproic Acid / Q000097:blood*
chemical_list: D001565:Benzoates; D014635:Valproic Acid; C034325:methyl 3-toluate